Sowmini Varadhan ea8994cb01 rds: hold a sock ref from rds_message to the rds_sock ... The existing model holds a reference from the rds_sock to the rds_message, but the rds_message does not itself hold a sock_put() on the rds_sock. Instead the m_rs field in the rds_message is assigned when the message is queued on the sock, and nulled when the message is dequeued from the sock. We want to be able to notify userspace when the rds_message is actually freed (from rds_message_purge(), after the refcounts to the rds_message go to 0). At the time that rds_message_purge() is called, the message is no longer on the rds_sock retransmit queue. Thus the explicit reference for the m_rs is needed to send a notification that will signal to userspace that it is now safe to free/reuse any pages that may have been pinned down for zerocopy. This patch manages the m_rs assignment in the rds_message with the necessary refcount book-keeping. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-02-16 16:04:16 -05:00
..
af_rds.c	net: make getname() functions return length rather than use int* parameter	2018-02-12 14:15:04 -05:00
bind.c	rds; Reset rs->rs_bound_addr in rds_add_bound() failure path	2017-12-27 13:37:27 -05:00
cong.c	rds: tcp: use rds_destroy_pending() to synchronize netns/module teardown and rds connection/workq management	2018-02-08 15:23:52 -05:00
connection.c	rds: tcp: use rds_destroy_pending() to synchronize netns/module teardown and rds connection/workq management	2018-02-08 15:23:52 -05:00
ib_cm.c	rds: tcp: use rds_destroy_pending() to synchronize netns/module teardown and rds connection/workq management	2018-02-08 15:23:52 -05:00
ib_fmr.c
ib_frmr.c
ib_mr.h
ib_rdma.c
ib_recv.c
ib_ring.c
ib_send.c
ib_stats.c
ib_sysctl.c
ib.c	rds: tcp: use rds_destroy_pending() to synchronize netns/module teardown and rds connection/workq management	2018-02-08 15:23:52 -05:00
ib.h
info.c
info.h
Kconfig
loop.c
loop.h
Makefile
message.c	rds: hold a sock ref from rds_message to the rds_sock	2018-02-16 16:04:16 -05:00
page.c
rdma_transport.c
rdma_transport.h
rdma.c	RDS: null pointer dereference in rds_atomic_free_op	2018-01-04 14:19:26 -05:00
rds_single_path.h
rds.h	rds: tcp: use rds_destroy_pending() to synchronize netns/module teardown and rds connection/workq management	2018-02-08 15:23:52 -05:00
recv.c
send.c	rds: hold a sock ref from rds_message to the rds_sock	2018-02-16 16:04:16 -05:00
stats.c
sysctl.c
tcp_connect.c	rds: tcp: use rds_destroy_pending() to synchronize netns/module teardown and rds connection/workq management	2018-02-08 15:23:52 -05:00
tcp_listen.c
tcp_recv.c	rds: tcp: use rds_destroy_pending() to synchronize netns/module teardown and rds connection/workq management	2018-02-08 15:23:52 -05:00
tcp_send.c	rds: tcp: use rds_destroy_pending() to synchronize netns/module teardown and rds connection/workq management	2018-02-08 15:23:52 -05:00
tcp_stats.c
tcp.c	net: make getname() functions return length rather than use int* parameter	2018-02-12 14:15:04 -05:00
tcp.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-23 13:51:56 -05:00
threads.c	rds: tcp: use rds_destroy_pending() to synchronize netns/module teardown and rds connection/workq management	2018-02-08 15:23:52 -05:00
transport.c